meteor/packages/google/google_configure.html

<template name="configureLoginServiceDialogForGoogle">
  <p>
    First, you'll need to get a Google Client ID. Follow these steps:
  </p>
  <ol>
    <li>
      Visit <a href="https://code.google.com/apis/console/" target="blank">https://code.google.com/apis/console/</a>
    </li>
    <li>
      "Create Project", if needed. Wait for Google to finish provisioning.
    </li>
    <li>
      On the left sidebar, go to "APIs &amp; auth" and, underneath, "Consent Screen". Make sure to enter a product name, and save.
    </li>
    <li>
      On the left sidebar, go to "APIs &amp; auth" and then, "Credentials". "Create New Client ID", then select "Web application" as the type.
    </li>
    <li>
     Set Authorized Javascript Origins to: <span class="url">{{siteUrl}}</span>
    </li>
    <li>
      Set Authorized Redirect URI to: <span class="url">{{siteUrl}}_oauth/google</span>
    </li>
    <li>
      Finish by clicking "Create Client ID".
    </li>
  </ol>
</template>